WO2006036424A3 - Color appearance space to cmyk mapping using relative purity - Google Patents

Color appearance space to cmyk mapping using relative purity Download PDF

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Publication number
WO2006036424A3
WO2006036424A3 PCT/US2005/030611 US2005030611W WO2006036424A3 WO 2006036424 A3 WO2006036424 A3 WO 2006036424A3 US 2005030611 W US2005030611 W US 2005030611W WO 2006036424 A3 WO2006036424 A3 WO 2006036424A3
Authority
WO
WIPO (PCT)
Prior art keywords
color
cmy
value
relative purity
cmyk
Prior art date
Application number
PCT/US2005/030611
Other languages
French (fr)
Other versions
WO2006036424A2 (en
Inventor
John S Haikin
Todd D Newman
Sharon A Henley
Original Assignee
Canon Kk
John S Haikin
Todd D Newman
Sharon A Henley
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Kk, John S Haikin, Todd D Newman, Sharon A Henley filed Critical Canon Kk
Publication of WO2006036424A2 publication Critical patent/WO2006036424A2/en
Publication of WO2006036424A3 publication Critical patent/WO2006036424A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

The present invention relates to a color management method for the conversion of internal color appearance space color values to CMYK device values, by interpolating CMY values from a plurality of CMY to color appearance space lookup tables, wherein each CMY table is associated with a specific value of K. A target internal color value is received and the relative purity of that color is calculated in the CMY space. Next, a black generation value is calculated using the relative purity of the target color. Finally, one of the plurality of CMY lookup tables is selected based on the black generation value, and a CMYK value is provided based on an interpolation from the selected lookup table. In this way, the present invention is able to control the output K value in a color appearance space to CMYK conversion. Accordingly, colors across a wide relative purity range, including natural images, can be reproduced with better accuracy and higher quality.
PCT/US2005/030611 2004-09-28 2005-08-26 Color appearance space to cmyk mapping using relative purity WO2006036424A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/953,705 US7154636B2 (en) 2004-09-28 2004-09-28 Color appearance space to CMYK mapping using relative purity
US10/953,705 2004-09-28

Publications (2)

Publication Number Publication Date
WO2006036424A2 WO2006036424A2 (en) 2006-04-06
WO2006036424A3 true WO2006036424A3 (en) 2009-02-26

Family

ID=36119353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/030611 WO2006036424A2 (en) 2004-09-28 2005-08-26 Color appearance space to cmyk mapping using relative purity

Country Status (2)

Country Link
US (1) US7154636B2 (en)
WO (1) WO2006036424A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7136175B2 (en) * 2002-06-10 2006-11-14 Hewlett-Packard Development Company, L.P. Printing device with delayed warm-up operation
US7397582B2 (en) * 2004-05-06 2008-07-08 Canon Kabushiki Kaisha Color characterization with enhanced purity
US7817851B2 (en) * 2006-11-27 2010-10-19 Microsoft Corporation Color fidelity metric
US20080144114A1 (en) * 2006-12-18 2008-06-19 Xerox Corporation Method and system for dynamic printer profiling
US8009325B1 (en) * 2008-05-29 2011-08-30 Adobe Systems Incorporated Controlling black levels using a three dimensional intermediate color space
US8253979B2 (en) * 2009-02-05 2012-08-28 Xerox Corporation Method of processing neutral gray color print jobs as monochrome black during billing detection and printing as a neutral gray composite black
WO2022139804A1 (en) * 2020-12-22 2022-06-30 Hewlett-Packard Development Company, L.P. Determining a target color value
AU2023210541B1 (en) * 2023-07-31 2023-11-16 Canva Pty Ltd Systems and methods for processing designs

Citations (4)

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Publication number Priority date Publication date Assignee Title
US5966474A (en) * 1997-12-12 1999-10-12 Hewlett-Packard Company Non-symmetric radial and non-symmetric pruned radial interpolation
US6028683A (en) * 1997-12-12 2000-02-22 Hewlett-Packard Company Common pruned radial and pruned tetrahedral interpolation hardware implementation
US20030072016A1 (en) * 2001-09-25 2003-04-17 Sharp Laboratories Of America, Inc. Color conversion with hue straightening using multiple look-up tables and interpolation
US20050123971A1 (en) * 2003-09-08 2005-06-09 Affymetrix, Inc. System, method, and computer software product for generating genotype calls

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3066756B2 (en) * 1990-03-09 2000-07-17 コニカ株式会社 Silver halide color photographic materials
US5481655A (en) * 1992-09-18 1996-01-02 Iris Graphics, Inc. System for matching a picture on a monitor to a printed picture
US6005968A (en) * 1997-08-29 1999-12-21 X-Rite, Incorporated Scanner calibration and correction techniques using scaled lightness values
US6335800B1 (en) * 1998-12-11 2002-01-01 Xerox Corporation Method of multidimensional interpolation for color transformations
US6704442B2 (en) * 1999-11-15 2004-03-09 Canon Kabushiki Kaisha Composite color transformation using customized gamut mappings
US7019868B2 (en) * 2000-12-19 2006-03-28 Sharp Laboratories Of Ameirca, Inc. Black generation method for CMYK color printer using multiple lookup tables and interpolation
US7046393B2 (en) 2001-04-26 2006-05-16 Hewlett-Packard Development Company, L.P. Color space transformation with black preservation for open color management
US7433077B2 (en) * 2003-08-28 2008-10-07 Canon Kabushiki Kaisha Gamut mapping between multiple boundary regions

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966474A (en) * 1997-12-12 1999-10-12 Hewlett-Packard Company Non-symmetric radial and non-symmetric pruned radial interpolation
US6028683A (en) * 1997-12-12 2000-02-22 Hewlett-Packard Company Common pruned radial and pruned tetrahedral interpolation hardware implementation
US20030072016A1 (en) * 2001-09-25 2003-04-17 Sharp Laboratories Of America, Inc. Color conversion with hue straightening using multiple look-up tables and interpolation
US20050123971A1 (en) * 2003-09-08 2005-06-09 Affymetrix, Inc. System, method, and computer software product for generating genotype calls

Also Published As

Publication number Publication date
US7154636B2 (en) 2006-12-26
WO2006036424A2 (en) 2006-04-06
US20060072131A1 (en) 2006-04-06

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